Harry Potter author J.K. Rowling has penned a letter to the team at Pottermore, operated by TH_NK, for their “extraordinary work.” A photo of the letter surfaced on Instagram.

Seemingly taken by someone at the TH_NK office and shared on Instagram with a fun blur effect, the letter is dated October 21 and has Rowling’s owl letterhead she uses when writing to fans.

“This is a shamefully overdue, but nevertheless huge – indeed, Hagrid-sized – THANK YOU to the Pottermore team for their extraordinary work,” Rowling wrote. “I know how much time and effort it took to get the site up and running, and the result is truly magnificent. I’ve had rave reviews from all sides; a friend of mine (Hufflepuff, maple and phoenix feather wand, tweleve inches, rigid) called me two nights ago to complain that she only won five house points so far. She’s forty four. Naturally, I told her to work harder.”

The letter goes on for another paragraph or two, but the photo begins to get blurry. “I’m hoping to say thank you in person before long,” reads one sentence. “Please accept my heartfelt gratitude,” says another. “A site that outstripped my wildest expectations,” is the last bit we can work out.

Earlier this week Pottermore opened up the final chapters in Harry Potter and the Chamber of Secrets. We wrote up a breakdown of what’s new in the chapters.

Source: Tumblr.